The Klein Tools Laser Line Bubble Level LBL100 projects a high power horizontal laser line and spot parallel to the base that reaches up to 75-Foot [22.9 m]. Use the laser to align ceiling tiles, floor tile, studs, wood, saws, and more. Three easy to read vials identify horizontal and cross at 0-Degree level and vertical at 90-Degree. The strong Rare-Earth magnets in the base of the level attach to the included leveling stand and other ferromagnetic surfaces. The top features a V-groove to fit the contour of pipe, conduit, beam, pole, and other round surfaces. Includes a leveling stand for manual leveling on uneven surfaces.